Duty-Grade Engineering: The HM Defense Guardian F5 (5.56 NATO)

Built in Ohio for shooters who demand uncompromising reliability, the HM Defense Guardian F5 upgrades the standard AR-15 platform from the inside out. Featuring proprietary engineering designed to eliminate common failure points, this rifle is ready for hard use right out of the box.

Key Features:

  • Caliber: 5.56 NATO (also accepts .223 Rem)

  • Capacity: One 30-round magazine

  • Barrel: 16" patented Monobloc barrel featuring an integral gas block machined directly into the barrel steel—eliminating pins, set screws, and gas block shift

  • Bolt Carrier Group: Patented HMB BCG engineered without a cam pin through-hole for superior structural strength and reliability

  • Handguard: 15" free-float M-LOK rail with a full-length Picatinny top rail for optics, lights, and accessories

  • Receivers: Forged 7075-T6 aluminum upper and lower built to strict tolerances